Need Help! Measuring the power output of the laser tube

# Thread: Measuring the power output of the laser tube

1. ## Measuring the power output of the laser tube

I bought a 60W laser tube for a DIY laser that I built, but I'm not convinced that it is getting anywhere close to 60W.What is the best / cheapest way to check the power output of the laser?

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2. ## Re: Measuring the power output of the laser tube

One of the links placed at the end of your request is labeled "Laser power meter for testing laser tube power"

It leads to this product. https://www.aliexpress.com/item/High...809985313.html

3. ## Re: Measuring the power output of the laser tube

I saw this. \$312 seems expensive for what I'm trying to do. I don't need to know +- 0.1 W. I just want to know if this thing is producing like half of the 60W it is supposed to. I'm wondering if there is a problem with the power supply. I think it might really be a 40W power supply.

4. ## Re: Measuring the power output of the laser tube

Originally Posted by rjd1234
\$312 seems expensive
Nobody said that laser playing is a cheap game.

5. ## Re: Measuring the power output of the laser tube

Have you contacted Russ at SarbarMultimedia on YouTube? He created what he calls a "Dohickey" that can measure laser power output. Not sure if he still sells them, but it might be worth asking.

You can also buy a Macken Instruments laser probes on eBay for around \$120-150.

6. ## Re: Measuring the power output of the laser tube

I have a 50W epilog helix and I cut 1/8" thick baltic birch plywood with the following settings;

Speed = 16% = 80in/sec*.16= 12.8in/sec
Power = 93% = 46.5W
Freq=500Hz

You could use this as a basic benchmark to check your machine.

7. ## Re: Measuring the power output of the laser tube

Try to found someone near you with power meter. Cheapest.
Buy simple power meter - bit more expensive, but way better.

8. ## Re: Measuring the power output of the laser tube

Most ebay/chinese 60w laser tubes are rated for peak not continous power. What is make/model/length of your purchased tube. What current are you running the tube at? What voltage and what power supply. These all will effect the output power of the tube. Before even trying to check output power make sure you are running your tube at the proper parameters.

9. ## Re: Measuring the power output of the laser tube

I am measuring 21.3 mA.
I have the power supply set to 110V.
https://www.ebay.com/itm/60W-Laser-P...sid=m570.l1313
The tube is 1200mm, 50 mm diameter.
https://www.ebay.com/p/60w-1200mm-La....c100012.m1985

10. ## Re: Measuring the power output of the laser tube

Follow robertk925's advice. Russ' device costs less than \$70 to put together and works great.

Measure both at the end of the tube to find out the tube's actual output and then again at the work surface to find out how much loss you are getting via your mirrors.

11. ## Re: Measuring the power output of the laser tube

We have power meter especially for co2 laser tube range from 0-200w.If you have interest please visit our website:Canton Wonder Laser Technology Co.,Ltd - Canton Wonder Laser Technology Co.,Ltd

12. ## Re: Measuring the power output of the laser tube

Originally Posted by co2lasertube
We have power meter especially for co2 laser tube range from 0-200w.If you have interest please visit our website:Canton Wonder Laser Technology Co.,Ltd - Canton Wonder Laser Technology Co.,Ltd
What do you get for those in US dollars?

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